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by nicole_express 1325 days ago
It's pretty easy to get a breakout cable for chrominance and luminance separately into an S-Video port; at that point I just plugged in the Apple II's output into luminance and left chrominance unconnected.

This works particularly well on the Apple II because all of its color actually comes from creating dot patterns that cause luminance to interfere with decoding of chrominance, it has no "real" chrominance signal.